Upper-Thread Tensioner Release - Duerkopp Adler 271 Service Manual

4. Upper-thread tensioner release

1
Regulation and inspection
Pressing on the axle 3 opens the tensioner by about 1 mm.
Caution: danger of injury
Turn off the main switch.
The upper-thread tensioner release may only be adjusted with the
sewing machine switched off.
Adjustment
–
Undo screw 1.
–
Move magnet 2.
With the upper-thread tensioner fully closed and with no thread
between the tension discs the axle 3 should have play of about
0.3 mm.
–
Retighten screw 1.
2
3
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